#284754
Closest named color: Charcoal (#264653). oklch(38% 0.043 226.8), rgb(40, 71, 84).
Aa
White text reads best on this color (9.90:1).
About this color
#284754 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.043 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.004 away. White text reads best on it, at 9.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #284754 |
| RGB | rgb(40, 71, 84) |
| HSL | hsl(198, 35%, 24%) |
| OKLCH | oklch(38% 0.043 226.8) |
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 #284754 | 9.90:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #284754 | 2.11:1 | Fails | Lc 11.0 | Not readable |
| #284754 text on white | 9.90:1 | AAA | Lc 92.9 | Preferred for body text |
| #284754 text on black | 2.11:1 | Fails | Lc -9.6 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#ACC5D1
oklch(80.9% 0.032 228.3)
-
Step 400
400
#7FA8BA
oklch(70.8% 0.052 226.7)
-
Step 500
500
#5D92A8
oklch(63.1% 0.065 226.2)
-
Step 600
600
#417C94
oklch(55.6% 0.072 226.8)
-
Step 700
700
#33687E
oklch(49% 0.066 227.6)
-
Step 800
800
#2B5566
oklch(42.7% 0.055 226.6)
-
Step 900
900 (this color)
#284754
oklch(38% 0.043 226.8)
-
Step 950
950
#182931
oklch(27% 0.027 229.2)
#284754 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) | #404655 | 0.033 |
| Deuteranopia (no green cones) | #3A4154 | 0.029 |
| Tritanopia (no blue cones) | #124B4B | 0.030 |
| Achromatopsia (no color) | #434343 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284754
#284754
oklch(38% 0.043 226.8)
- #563B2E
#563B2E
oklch(37.9% 0.044 46.7)
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 #284754, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.004
- Dark Grey Blue #29465B ΔE 0.014
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Teal #014D4E ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.042
- Onyx #343A40 ΔE 0.046
- Deep Teal #00555A ΔE 0.046
Use #284754 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.