#23909E
Closest named color: Teal Green (#0A9396). oklch(60.1% 0.095 208), rgb(35, 144, 158).
Aa
Black text reads best on this color (5.55:1).
About this color
#23909E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.095 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.019 away. Black text reads best on it, at 5.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #23909E |
| RGB | rgb(35, 144, 158) |
| HSL | hsl(187, 64%, 38%) |
| OKLCH | oklch(60.1% 0.095 208) |
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 #23909E | 3.78:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #23909E | 5.55:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #23909E text on white | 3.78:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #23909E text on black | 5.55:1 | AA | Lc -36.7 | Non-text elements, placeholder 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 500.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9ECAD0
oklch(81% 0.047 206.6)
-
Step 400
400
#65AEB9
oklch(70.7% 0.075 208)
-
Step 500
500 (this color)
#23909E
oklch(60.1% 0.095 208)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#084A53
oklch(37.6% 0.062 209.4)
-
Step 950
950
#0A2C30
oklch(27.1% 0.039 206.2)
#23909E 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) | #838A9F | 0.091 |
| Deuteranopia (no green cones) | #727E9E | 0.083 |
| Tritanopia (no blue cones) | #009794 | 0.031 |
| Achromatopsia (no color) | #838383 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23909E
#23909E
oklch(60.1% 0.095 208)
- #B26A60
#B26A60
oklch(60.1% 0.094 28.6)
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 #23909E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.019
- Teal Blue #01889F ΔE 0.028
- Dark Cyan #008B8B ΔE 0.033
- Sea #3C9992 ΔE 0.041
- Blue NCS #118AB2 ΔE 0.041
- Dusty Teal #4C9085 ΔE 0.044
- Blue Green #0F9B8E ΔE 0.048
- Persian Green #2A9D8F ΔE 0.052
Use #23909E 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.