#299DE3
Closest named color: Chefchaouen Blue (#4895EF). oklch(66.6% 0.143 241.4), rgb(41, 157, 227).
Aa
Black text reads best on this color (7.02:1).
About this color
#299DE3 is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.143 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.035 away. Black text reads best on it, at 7.02:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.02:1 |
| White text | 2.98:1 |
Values
| HEX | #299DE3 |
| RGB | rgb(41, 157, 227) |
| HSL | hsl(203, 77%, 53%) |
| OKLCH | oklch(66.6% 0.143 241.4) |
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 #299DE3 | 2.98:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #299DE3 | 7.02:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #299DE3 text on white | 2.98:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #299DE3 text on black | 7.02:1 | AAA | Lc -45.7 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C3DDF1
oklch(88.5% 0.039 241.1)
-
Step 300
300
#99C7EA
oklch(80.9% 0.069 241.5)
-
Step 400
400
#5BA9E0
oklch(70.7% 0.112 241.4)
-
Step 500
500 (this color)
#299DE3
oklch(66.6% 0.143 241.4)
-
Step 600
600
#007BB8
oklch(55.7% 0.13 241.1)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#00466C
oklch(37.7% 0.089 241.5)
-
Step 950
950
#042940
oklch(26.9% 0.059 241.5)
#299DE3 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) | #7C9EE6 | 0.069 |
| Deuteranopia (no green cones) | #628EE2 | 0.053 |
| Tritanopia (no blue cones) | #00AEB6 | 0.095 |
| Achromatopsia (no color) | #959595 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #299DE3
#299DE3
oklch(66.6% 0.143 241.4)
- #D17D22
#D17D22
oklch(66.7% 0.142 61.7)
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 #299DE3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.035
- Dark Sky Blue #448EE4 ΔE 0.042
- Cornflower Blue #6495ED ΔE 0.050
- Dodger Blue #1E90FF ΔE 0.060
- Water Blue #0E87CC ΔE 0.068
- Soft Blue #6488EA ΔE 0.069
- Faded Blue #658CBB ΔE 0.073
- Cool Blue #4984B8 ΔE 0.083
Use #299DE3 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.