#274657
Closest named color: Charcoal (#264653). oklch(37.8% 0.047 233.9), rgb(39, 70, 87).
Aa
White text reads best on this color (10.00:1).
About this color
#274657 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.047 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.007 away. White text reads best on it, at 10.00:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.09:1 |
| White text | 10.00:1 |
Values
| HEX | #274657 |
| RGB | rgb(39, 70, 87) |
| HSL | hsl(201, 38%, 25%) |
| OKLCH | oklch(37.8% 0.047 233.9) |
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 #274657 | 10.00:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #274657 | 2.09:1 | Fails | Lc 10.8 | Not readable |
| #274657 text on white | 10.00:1 | AAA | Lc 93.1 | Preferred for body text |
| #274657 text on black | 2.09:1 | Fails | Lc -9.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D4
oklch(80.9% 0.035 233.2)
-
Step 400
400
#7EA7BF
oklch(70.7% 0.057 234.3)
-
Step 500
500
#5C91AF
oklch(63.1% 0.072 234.4)
-
Step 600
600
#407B9A
oklch(55.6% 0.078 233.5)
-
Step 700
700
#326784
oklch(49% 0.073 234.9)
-
Step 800
800
#2A546B
oklch(42.6% 0.061 234.6)
-
Step 900
900 (this color)
#274657
oklch(37.8% 0.047 233.9)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#274657 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) | #3E4558 | 0.031 |
| Deuteranopia (no green cones) | #374057 | 0.027 |
| Tritanopia (no blue cones) | #0C4B4C | 0.036 |
| Achromatopsia (no color) | #424242 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274657
#274657
oklch(37.8% 0.047 233.9)
- #563B2A
#563B2A
oklch(37.9% 0.047 53)
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 #274657, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.007
- Dark Grey Blue #29465B ΔE 0.008
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Teal #014D4E ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.041
- Onyx #343A40 ΔE 0.047
- Deep Teal #00555A ΔE 0.050
Use #274657 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.