#6991FF
Closest named color: Cornflower Blue (#6495ED). oklch(67.9% 0.168 266.9), rgb(105, 145, 255).
Aa
Black text reads best on this color (7.09:1).
About this color
#6991FF is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.168 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.031 away. Black text reads best on it, at 7.09:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.09:1 |
| White text | 2.95:1 |
Values
| HEX | #6991FF |
| RGB | rgb(105, 145, 255) |
| HSL | hsl(224, 100%, 71%) |
| OKLCH | oklch(67.9% 0.168 266.9) |
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 #6991FF | 2.95:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #6991FF | 7.09:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #6991FF text on white | 2.95:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #6991FF text on black | 7.09:1 | AAA | Lc -45.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400 (this color)
#6991FF
oklch(67.9% 0.168 266.9)
-
Step 500
500
#537EFF
oklch(63.1% 0.197 266.8)
-
Step 600
600
#375FF9
oklch(55.6% 0.233 266.9)
-
Step 700
700
#2A4DD9
oklch(49.1% 0.217 266.7)
-
Step 800
800
#2340AF
oklch(42.6% 0.18 266.8)
-
Step 900
900
#20388B
oklch(37.7% 0.141 267)
-
Step 950
950
#132251
oklch(27% 0.088 267)
#6991FF 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) | #5F9DFF | 0.031 |
| Deuteranopia (no green cones) | #4A90FD | 0.031 |
| Tritanopia (no blue cones) | #00AABC | 0.147 |
| Achromatopsia (no color) | #969696 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6991FF
#6991FF
oklch(67.9% 0.168 266.9)
- #BD9100
#BD9100
oklch(68% 0.139 86.9)
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 #6991FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.031
- Soft Blue #6488EA ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.042
- Lavender Blue #8B88F8 ΔE 0.045
- Periwinkle Blue #8F99FB ΔE 0.054
- Dodger Blue #1E90FF ΔE 0.055
- Periwinkle #8E82FE ΔE 0.055
- Dark Sky Blue #448EE4 ΔE 0.056
Use #6991FF 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.