#174E95
Closest named color: Cobalt (#1E488F). oklch(43% 0.13 256.8), rgb(23, 78, 149).
Aa
White text reads best on this color (8.20:1).
About this color
#174E95 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.130 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.018 away. White text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.56:1 |
| White text | 8.20:1 |
Values
| HEX | #174E95 |
| RGB | rgb(23, 78, 149) |
| HSL | hsl(214, 73%, 34%) |
| OKLCH | oklch(43% 0.13 256.8) |
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 #174E95 | 8.20:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #174E95 | 2.56:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #174E95 text on white | 8.20:1 | AAA | Lc 87.9 | Fine for body text |
| #174E95 text on black | 2.56:1 | Fails | Lc -14.3 | 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 800.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C8DBF5
oklch(88.5% 0.041 256.2)
-
Step 300
300
#A2C3F2
oklch(81% 0.076 257.2)
-
Step 400
400
#6EA2EB
oklch(70.6% 0.121 257)
-
Step 500
500
#4689E5
oklch(63.1% 0.155 257)
-
Step 600
600
#2471D3
oklch(55.6% 0.168 256.7)
-
Step 700
700
#165EB7
oklch(49.1% 0.157 256.7)
-
Step 800
800 (this color)
#174E95
oklch(43% 0.13 256.8)
-
Step 900
900
#194176
oklch(37.7% 0.101 256.6)
-
Step 950
950
#102645
oklch(26.9% 0.064 257.3)
#174E95 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) | #275598 | 0.025 |
| Deuteranopia (no green cones) | #014A94 | 0.016 |
| Tritanopia (no blue cones) | #005F6A | 0.098 |
| Achromatopsia (no color) | #4F4F4F | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #174E95
#174E95
oklch(43% 0.13 256.8)
- #6B4800
#6B4800
oklch(43% 0.09 77)
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 #174E95, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.018
- Dusk Blue #26538D ΔE 0.025
- Light Navy #155084 ΔE 0.030
- Deep Sea Blue #015482 ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.054
- Denim Blue #3B5B92 ΔE 0.055
- Blueberry #464196 ΔE 0.057
Use #174E95 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.