#1FDFE9
Closest named color: Aqua Blue (#02D8E9). oklch(82.3% 0.136 200.8), rgb(31, 223, 233).
Aa
Black text reads best on this color (12.78:1).
About this color
#1FDFE9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 82%, its chroma 0.136 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.021 away. Black text reads best on it, at 12.78:1.
| Hue family | Teals and cyans |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 12.78:1 |
| White text | 1.64:1 |
Values
| HEX | #1FDFE9 |
| RGB | rgb(31, 223, 233) |
| HSL | hsl(183, 82%, 52%) |
| OKLCH | oklch(82.3% 0.136 200.8) |
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 #1FDFE9 | 1.64:1 | Fails | Lc -31.5 | Non-text elements, placeholder text |
| Black text on #1FDFE9 | 12.78:1 | AAA | Lc 75.9 | Fine for body text |
| #1FDFE9 text on white | 1.64:1 | Fails | Lc 27.9 | Dividers and decoration only |
| #1FDFE9 text on black | 12.78:1 | AAA | Lc -75.0 | 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 300.
-
Step 50
50
#E8F9FA
oklch(97% 0.018 201.1)
-
Step 100
100
#CCF2F5
oklch(93.5% 0.04 202.4)
-
Step 200
200
#9CE9ED
oklch(88.5% 0.076 200)
-
Step 300
300 (this color)
#1FDFE9
oklch(82.3% 0.136 200.8)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#1FDFE9 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) | #CDD5EA | 0.138 |
| Deuteranopia (no green cones) | #B4C2EA | 0.128 |
| Tritanopia (no blue cones) | #00E8E2 | 0.030 |
| Achromatopsia (no color) | #CACACA | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1FDFE9
#1FDFE9
oklch(82.3% 0.136 200.8)
- #FFACAA
#FFACAA
oklch(82.4% 0.098 20.9)
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 #1FDFE9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.021
- Turquoise #40E0D0 ΔE 0.037
- Medium Turquoise #48D1CC ΔE 0.046
- Dark Turquoise #00CED1 ΔE 0.053
- Robin's Egg #6DEDFD ΔE 0.062
- Vivid Sky Blue #4CC9F0 ΔE 0.065
- Bright Light Blue #26F7FD ΔE 0.066
- Bright Sky Blue #02CCFE ΔE 0.069
Use #1FDFE9 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.