#174D6C
Closest named color: Dark Grey Blue (#29465B). oklch(40.1% 0.076 238.4), rgb(23, 77, 108).
Aa
White text reads best on this color (9.07:1).
About this color
#174D6C is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.076 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.033 away. White text reads best on it, at 9.07:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #174D6C |
| RGB | rgb(23, 77, 108) |
| HSL | hsl(202, 65%, 26%) |
| OKLCH | oklch(40.1% 0.076 238.4) |
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 #174D6C | 9.07:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #174D6C | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #174D6C text on white | 9.07:1 | AAA | Lc 90.6 | Preferred for body text |
| #174D6C text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#9FC7E2
oklch(81% 0.057 237.9)
-
Step 400
400
#68A9D3
oklch(70.8% 0.091 238.2)
-
Step 500
500
#3792C8
oklch(63% 0.117 238.9)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900 (this color)
#174D6C
oklch(40.1% 0.076 238.4)
-
Step 950
950
#0C293B
oklch(26.9% 0.048 239.4)
#174D6C 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) | #3E4D6D | 0.041 |
| Deuteranopia (no green cones) | #33456B | 0.034 |
| Tritanopia (no blue cones) | #005558 | 0.050 |
| Achromatopsia (no color) | #494949 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174D6C
#174D6C
oklch(40.1% 0.076 238.4)
- #663D19
#663D19
oklch(40.2% 0.076 59.1)
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 #174D6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.038
- Light Navy #155084 ΔE 0.040
- Charcoal #264653 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.044
- Deep Teal #00555A ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.055
- Dark Teal #014D4E ΔE 0.055
Use #174D6C 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.