#274D68
Closest named color: Dark Grey Blue (#29465B). oklch(40.5% 0.063 241.5), rgb(39, 77, 104).
Aa
White text reads best on this color (8.94:1).
About this color
#274D68 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.063 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 8.94:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #274D68 |
| RGB | rgb(39, 77, 104) |
| HSL | hsl(205, 45%, 28%) |
| OKLCH | oklch(40.5% 0.063 241.5) |
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 #274D68 | 8.94:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #274D68 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #274D68 text on white | 8.94:1 | AAA | Lc 90.4 | Preferred for body text |
| #274D68 text on black | 2.34:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ACC4D7
oklch(80.8% 0.038 241.9)
-
Step 400
400
#80A6C2
oklch(70.7% 0.058 240.6)
-
Step 500
500
#5F8FB3
oklch(63% 0.075 241.8)
-
Step 600
600
#44799F
oklch(55.5% 0.082 241.5)
-
Step 700
700
#366688
oklch(49.2% 0.076 241.4)
-
Step 800
800 (this color)
#274D68
oklch(40.5% 0.063 241.5)
-
Step 900
900
#294559
oklch(37.7% 0.048 240.8)
-
Step 950
950
#182834
oklch(26.8% 0.031 241.7)
#274D68 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) | #414D69 | 0.032 |
| Deuteranopia (no green cones) | #384768 | 0.026 |
| Tritanopia (no blue cones) | #005456 | 0.050 |
| Achromatopsia (no color) | #494949 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #274D68
#274D68
oklch(40.5% 0.063 241.5)
- #614123
#614123
oklch(40.5% 0.063 62.7)
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 #274D68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.046
- Deep Teal #00555A ΔE 0.046
- Light Navy #155084 ΔE 0.047
- Twilight Blue #0A437A ΔE 0.054
- Dark Teal #014D4E ΔE 0.055
Use #274D68 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.