#2D99F5
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.8% 0.166 249.3), rgb(45, 153, 245).
Aa
Black text reads best on this color (6.98:1).
About this color
#2D99F5 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.166 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.018 away. Black text reads best on it, at 6.98:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #2D99F5 |
| RGB | rgb(45, 153, 245) |
| HSL | hsl(208, 91%, 57%) |
| OKLCH | oklch(66.8% 0.166 249.3) |
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 #2D99F5 | 3.00:1 | AA large text | Lc -61.6 | Content text, not long reading |
| Black text on #2D99F5 | 6.98:1 | AA | Lc 47.8 | Large or bold text, headings |
| #2D99F5 text on white | 3.00:1 | AA large text | Lc 56.3 | Large or bold text, headings |
| #2D99F5 text on black | 6.98:1 | AA | Lc -45.5 | 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 500.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C3DCF6
oklch(88.4% 0.045 249.4)
-
Step 300
300
#98C5F3
oklch(80.8% 0.081 249.4)
-
Step 400
400
#5BA6EE
oklch(70.8% 0.13 249.3)
-
Step 500
500 (this color)
#2D99F5
oklch(66.8% 0.166 249.3)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#004376
oklch(37.6% 0.105 249.5)
-
Step 950
950
#052846
oklch(27.1% 0.068 249.1)
#2D99F5 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) | #6D9EF9 | 0.054 |
| Deuteranopia (no green cones) | #4E8DF3 | 0.034 |
| Tritanopia (no blue cones) | #00AFBB | 0.120 |
| Achromatopsia (no color) | #959595 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D99F5
#2D99F5
oklch(66.8% 0.166 249.3)
- #CD8100
#CD8100
oklch(66.7% 0.146 68.9)
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 #2D99F5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.018
- Dodger Blue #1E90FF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.041
- Soft Blue #6488EA ΔE 0.055
- Water Blue #0E87CC ΔE 0.076
- Clear Blue #247AFD ΔE 0.084
- Cornflower #6A79F7 ΔE 0.089
Use #2D99F5 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.