#5997E7
Closest named color: Cornflower Blue (#6495ED). oklch(67% 0.136 255.5), rgb(89, 151, 231).
Aa
Black text reads best on this color (7.00:1).
About this color
#5997E7 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.136 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.016 away. Black text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #5997E7 |
| RGB | rgb(89, 151, 231) |
| HSL | hsl(214, 75%, 63%) |
| OKLCH | oklch(67% 0.136 255.5) |
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 #5997E7 | 2.99:1 | Fails | Lc -61.8 | Content text, not long reading |
| Black text on #5997E7 | 7.00:1 | AAA | Lc 47.6 | Large or bold text, headings |
| #5997E7 text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #5997E7 text on black | 7.00:1 | AAA | Lc -45.4 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9CC3F7
oklch(80.8% 0.085 255.8)
-
Step 400
400 (this color)
#5997E7
oklch(67% 0.136 255.5)
-
Step 500
500
#3589EF
oklch(63.1% 0.173 255.5)
-
Step 600
600
#0070DD
oklch(55.6% 0.187 255.6)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#004D9B
oklch(42.8% 0.143 255.4)
-
Step 900
900
#0E417C
oklch(37.8% 0.113 255.4)
-
Step 950
950
#0B2648
oklch(26.9% 0.071 255.8)
#5997E7 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) | #759CEA | 0.034 |
| Deuteranopia (no green cones) | #628FE5 | 0.021 |
| Tritanopia (no blue cones) | #00A9B4 | 0.112 |
| Achromatopsia (no color) | #959595 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5997E7
#5997E7
oklch(67% 0.136 255.5)
- #C58816
#C58816
oklch(67.1% 0.136 75.7)
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 #5997E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.016
- Chefchaouen Blue #4895EF ΔE 0.020
- Dark Sky Blue #448EE4 ΔE 0.033
- Soft Blue #6488EA ΔE 0.041
- Dodger Blue #1E90FF ΔE 0.058
- Faded Blue #658CBB ΔE 0.066
- Perrywinkle #8F8CE7 ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.071
Use #5997E7 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.