#2B91FF
Closest named color: Dodger Blue (#1E90FF). oklch(65.6% 0.187 254.1), rgb(43, 145, 255).
Aa
Black text reads best on this color (6.59:1).
About this color
#2B91FF is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.187 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.006 away. Black text reads best on it, at 6.59:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.187) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 6.59:1 |
| White text | 3.18:1 |
Values
| HEX | #2B91FF |
| RGB | rgb(43, 145, 255) |
| HSL | hsl(211, 100%, 58%) |
| OKLCH | oklch(65.6% 0.187 254.1) |
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 #2B91FF | 3.18:1 | AA large text | Lc -63.8 | Content text, not long reading |
| Black text on #2B91FF | 6.59:1 | AA | Lc 45.6 | Large or bold text, headings |
| #2B91FF text on white | 3.18:1 | AA large text | Lc 58.4 | Large or bold text, headings |
| #2B91FF text on black | 6.59:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C3DCFB
oklch(88.6% 0.051 253.9)
-
Step 300
300
#98C4FB
oklch(80.9% 0.091 254.3)
-
Step 400
400
#5BA3F9
oklch(70.7% 0.146 254.1)
-
Step 500
500 (this color)
#2B91FF
oklch(65.6% 0.187 254.1)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800
#004E97
oklch(42.8% 0.136 254.1)
-
Step 900
900
#00417F
oklch(37.8% 0.12 253.9)
-
Step 950
950
#05264B
oklch(26.9% 0.078 254.4)
#2B91FF 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) | #589AFF | 0.043 |
| Deuteranopia (no green cones) | #2B88FD | 0.023 |
| Tritanopia (no blue cones) | #00ABBB | 0.140 |
| Achromatopsia (no color) | #909090 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B91FF
#2B91FF
oklch(65.6% 0.187 254.1)
- #C38200
#C38200
oklch(65.7% 0.139 74)
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 #2B91FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.006
- Chefchaouen Blue #4895EF ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.041
- Soft Blue #6488EA ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.053
- Clear Blue #247AFD ΔE 0.059
- Cornflower #6A79F7 ΔE 0.072
- Water Blue #0E87CC ΔE 0.081
Use #2B91FF 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.