#104B58
Closest named color: Charcoal (#264653). oklch(38.3% 0.061 216.3), rgb(16, 75, 88).
Aa
White text reads best on this color (9.68:1).
About this color
#104B58 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.061 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.021 away. White text reads best on it, at 9.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.16:1 |
| White text | 9.68:1 |
Values
| HEX | #104B58 |
| RGB | rgb(16, 75, 88) |
| HSL | hsl(191, 69%, 20%) |
| OKLCH | oklch(38.3% 0.061 216.3) |
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 #104B58 | 9.68:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #104B58 | 2.16:1 | Fails | Lc 11.8 | Not readable |
| #104B58 text on white | 9.68:1 | AAA | Lc 92.1 | Preferred for body text |
| #104B58 text on black | 2.16:1 | Fails | Lc -10.3 | Not readable |
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 900.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D4
oklch(81% 0.046 215.9)
-
Step 400
400
#68ACBE
oklch(70.6% 0.074 216.6)
-
Step 500
500
#3797AE
oklch(63% 0.094 216.8)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900 (this color)
#104B58
oklch(38.3% 0.061 216.3)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#104B58 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) | #424859 | 0.054 |
| Deuteranopia (no green cones) | #384158 | 0.048 |
| Tritanopia (no blue cones) | #00504F | 0.027 |
| Achromatopsia (no color) | #444444 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104B58
#104B58
oklch(38.3% 0.061 216.3)
- #5F372C
#5F372C
oklch(38.3% 0.061 36.2)
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 #104B58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.021
- Dark Teal #014D4E ΔE 0.022
- Dark Grey Blue #29465B ΔE 0.027
- Deep Teal #00555A ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Blue Green #005249 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.051
- Midnight Green #073B4C ΔE 0.055
Use #104B58 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.