#154FB9
Closest named color: Blue Blue (#2242C7). oklch(46.1% 0.178 261.4), rgb(21, 79, 185).
Aa
White text reads best on this color (7.36:1).
About this color
#154FB9 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.178 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.036 away. White text reads best on it, at 7.36:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #154FB9 |
| RGB | rgb(21, 79, 185) |
| HSL | hsl(219, 80%, 40%) |
| OKLCH | oklch(46.1% 0.178 261.4) |
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 #154FB9 | 7.36:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #154FB9 | 2.85:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #154FB9 text on white | 7.36:1 | AAA | Lc 84.9 | Fine for body text |
| #154FB9 text on black | 2.85:1 | Fails | Lc -17.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A2C1F9
oklch(80.8% 0.087 262)
-
Step 400
400
#6F9FF6
oklch(70.6% 0.138 261.6)
-
Step 500
500
#4985F2
oklch(63.2% 0.175 261.2)
-
Step 600
600
#2C6BE1
oklch(55.6% 0.191 261.5)
-
Step 700
700 (this color)
#154FB9
oklch(46.1% 0.178 261.4)
-
Step 800
800
#1B499E
oklch(42.7% 0.147 261.3)
-
Step 900
900
#1C3E7D
oklch(37.6% 0.114 261.4)
-
Step 950
950
#112549
oklch(27% 0.072 261.1)
#154FB9 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) | #005DBD | 0.035 |
| Deuteranopia (no green cones) | #004FB7 | 0.008 |
| Tritanopia (no blue cones) | #006A7C | 0.136 |
| Achromatopsia (no color) | #565656 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154FB9
#154FB9
oklch(46.1% 0.178 261.4)
- #735200
#735200
oklch(46.2% 0.095 81.6)
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 #154FB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.036
- Sapphire #2138AB ΔE 0.058
- Majorelle Blue #3F37C9 ΔE 0.063
- Cobalt #1E488F ΔE 0.069
- Dusk Blue #26538D ΔE 0.074
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Blueberry #464196 ΔE 0.076
- Mid Blue #276AB3 ΔE 0.077
Use #154FB9 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.