#1DA4E4
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.1% 0.141 236.7), rgb(29, 164, 228).
Aa
Black text reads best on this color (7.48:1).
About this color
#1DA4E4 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.141 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.050 away. Black text reads best on it, at 7.48:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.48:1 |
| White text | 2.80:1 |
Values
| HEX | #1DA4E4 |
| RGB | rgb(29, 164, 228) |
| HSL | hsl(199, 79%, 50%) |
| OKLCH | oklch(68.1% 0.141 236.7) |
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 #1DA4E4 | 2.80:1 | Fails | Lc -58.7 | Large or bold text, headings |
| Black text on #1DA4E4 | 7.48:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #1DA4E4 text on white | 2.80:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #1DA4E4 text on black | 7.48:1 | AAA | Lc -48.4 | 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
#EEF7FD
oklch(97.1% 0.013 236.6)
-
Step 100
100
#DBEDF9
oklch(93.6% 0.025 236.8)
-
Step 200
200
#BBDFF6
oklch(88.5% 0.049 236.2)
-
Step 300
300
#88CAF3
oklch(81% 0.089 236.6)
-
Step 400
400 (this color)
#1DA4E4
oklch(68.1% 0.141 236.7)
-
Step 500
500
#0094D1
oklch(63.1% 0.137 236.6)
-
Step 600
600
#007CB0
oklch(55.5% 0.121 236.7)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950
#002A3F
oklch(27% 0.059 236.5)
#1DA4E4 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) | #85A4E7 | 0.081 |
| Deuteranopia (no green cones) | #6B93E3 | 0.064 |
| Tritanopia (no blue cones) | #00B4BA | 0.088 |
| Achromatopsia (no color) | #9A9A9A | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1DA4E4
#1DA4E4
oklch(68.1% 0.141 236.7)
- #D97F33
#D97F33
oklch(68.1% 0.142 56.8)
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 #1DA4E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.069
- Dodger Blue #1E90FF ΔE 0.074
- Deep Sky Blue #00BFFF ΔE 0.076
- Faded Blue #658CBB ΔE 0.084
- Water Blue #0E87CC ΔE 0.084
Use #1DA4E4 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.