#154F98
Closest named color: Cobalt (#1E488F). oklch(43.4% 0.133 256.6), rgb(21, 79, 152).
Aa
White text reads best on this color (8.06:1).
About this color
#154F98 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.133 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.023 away. White text reads best on it, at 8.06:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.60:1 |
| White text | 8.06:1 |
Values
| HEX | #154F98 |
| RGB | rgb(21, 79, 152) |
| HSL | hsl(213, 76%, 34%) |
| OKLCH | oklch(43.4% 0.133 256.6) |
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 #154F98 | 8.06:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #154F98 | 2.60:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #154F98 text on white | 8.06:1 | AAA | Lc 87.4 | Fine for body text |
| #154F98 text on black | 2.60:1 | Fails | Lc -14.7 | 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 800.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A0C3F3
oklch(80.9% 0.078 256.4)
-
Step 400
400
#6CA2ED
oklch(70.6% 0.125 256.8)
-
Step 500
500
#4389E7
oklch(63.1% 0.158 256.7)
-
Step 600
600
#2070D5
oklch(55.5% 0.173 256.8)
-
Step 700
700
#115EB9
oklch(49.2% 0.16 256.5)
-
Step 800
800 (this color)
#154F98
oklch(43.4% 0.133 256.6)
-
Step 900
900
#174177
oklch(37.7% 0.103 256.3)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#154F98 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) | #26569B | 0.025 |
| Deuteranopia (no green cones) | #004B97 | 0.016 |
| Tritanopia (no blue cones) | #00616C | 0.101 |
| Achromatopsia (no color) | #505050 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154F98
#154F98
oklch(43.4% 0.133 256.6)
- #6D4900
#6D4900
oklch(43.5% 0.091 76.5)
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 #154F98, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.023
- Dusk Blue #26538D ΔE 0.026
- Light Navy #155084 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.054
- Blueberry #464196 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.059
Use #154F98 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.