#6991DB
Closest named color: Cornflower Blue (#6495ED). oklch(65.9% 0.12 262), rgb(105, 145, 219).
Aa
Black text reads best on this color (6.67:1).
About this color
#6991DB is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.120 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.027 away. Black text reads best on it, at 6.67:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.67:1 |
| White text | 3.14:1 |
Values
| HEX | #6991DB |
| RGB | rgb(105, 145, 219) |
| HSL | hsl(219, 61%, 64%) |
| OKLCH | oklch(65.9% 0.12 262) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6991DB | 3.14:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #6991DB | 6.67:1 | AA | Lc 45.6 | Large or bold text, headings |
| #6991DB text on white | 3.14:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #6991DB text on black | 6.67:1 | AA | Lc -43.3 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ACC1E7
oklch(80.8% 0.059 262.3)
-
Step 400
400
#81A1DB
oklch(70.8% 0.093 262)
-
Step 500
500 (this color)
#6991DB
oklch(65.9% 0.12 262)
-
Step 600
600
#4871BF
oklch(55.7% 0.13 262.1)
-
Step 700
700
#395EA5
oklch(49.1% 0.122 262.1)
-
Step 800
800
#2F4D85
oklch(42.6% 0.1 261.8)
-
Step 900
900
#2A416B
oklch(37.8% 0.078 261.6)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#6991DB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7497DE | 0.022 |
| Deuteranopia (no green cones) | #668CD9 | 0.014 |
| Tritanopia (no blue cones) | #2FA1AC | 0.107 |
| Achromatopsia (no color) | #919191 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6991DB
#6991DB
oklch(65.9% 0.12 262)
- #B68A2C
#B68A2C
oklch(65.9% 0.12 82.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6991DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.027
- Soft Blue #6488EA ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.040
- Faded Blue #658CBB ΔE 0.048
- Perrywinkle #8F8CE7 ΔE 0.054
- Lavender Blue #8B88F8 ΔE 0.068
- Periwinkle Blue #8F99FB ΔE 0.071
Use #6991DB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.