#1DF9E5
Closest named color: Bright Aqua (#0BF9EA). oklch(88.4% 0.153 184.5), rgb(29, 249, 229).
Aa
Black text reads best on this color (15.73:1).
About this color
#1DF9E5 is a light, vivid teal or cyan. In OKLCH its lightness is 88%, its chroma 0.153 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.007 away. Black text reads best on it, at 15.73:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 15.73:1 |
| White text | 1.33:1 |
Values
| HEX | #1DF9E5 |
| RGB | rgb(29, 249, 229) |
| HSL | hsl(175, 95%, 55%) |
| OKLCH | oklch(88.4% 0.153 184.5) |
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 #1DF9E5 | 1.33:1 | Fails | Lc -18.2 | Dividers and decoration only |
| Black text on #1DF9E5 | 15.73:1 | AAA | Lc 87.8 | Fine for body text |
| #1DF9E5 text on white | 1.33:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #1DF9E5 text on black | 15.73:1 | AAA | Lc -87.9 | Fine for body 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 200.
-
Step 50
50
#E3FCF7
oklch(97.2% 0.027 182.4)
-
Step 100
100
#C0F7EE
oklch(93.6% 0.057 184)
-
Step 200
200 (this color)
#1DF9E5
oklch(88.4% 0.153 184.5)
-
Step 300
300
#00DECC
oklch(81% 0.143 184.6)
-
Step 400
400
#00B9AA
oklch(70.6% 0.125 184.7)
-
Step 500
500
#009F92
oklch(63.2% 0.111 184.7)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#1DF9E5 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) | #ECEAE4 | 0.163 |
| Deuteranopia (no green cones) | #D2D7E7 | 0.154 |
| Tritanopia (no blue cones) | #00FFF3 | 0.021 |
| Achromatopsia (no color) | #DFDFDF | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1DF9E5
#1DF9E5
oklch(88.4% 0.153 184.5)
- #FFC8D3
#FFC8D3
oklch(88.4% 0.064 5.1)
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 #1DF9E5, closest first.
No curated palette has a color within ΔE 0.04 of #1DF9E5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.007
- Bright Turquoise #0FFEF9 ΔE 0.027
- Cyan #00FFFF ΔE 0.035
- Bright Light Blue #26F7FD ΔE 0.036
- Bright Cyan #41FDFE ΔE 0.037
- Bright Teal #01F9C6 ΔE 0.044
- Light Turquoise #7EF4CC ΔE 0.048
- Aquamarine #7FFFD4 ΔE 0.054
Use #1DF9E5 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.