#607AA3
Closest named color: Stormy Blue (#507B9C). oklch(57.6% 0.071 259.3), rgb(96, 122, 163).
Aa
Black text reads best on this color (4.81:1).
About this color
#607AA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.071 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.023 away. Black text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #607AA3 |
| RGB | rgb(96, 122, 163) |
| HSL | hsl(217, 27%, 51%) |
| OKLCH | oklch(57.6% 0.071 259.3) |
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 #607AA3 | 4.36:1 | AA large text | Lc -75.7 | Fine for body text |
| Black text on #607AA3 | 4.81:1 | AA | Lc 33.9 | Non-text elements, placeholder text |
| #607AA3 text on white | 4.36:1 | AA large text | Lc 70.2 | Content text, not long reading |
| #607AA3 text on black | 4.81:1 | AA | Lc -31.5 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B5C2D6
oklch(81% 0.032 258.9)
-
Step 400
400
#8EA2C1
oklch(70.8% 0.051 259.1)
-
Step 500
500
#728BB1
oklch(63.2% 0.064 258.6)
-
Step 600
600 (this color)
#607AA3
oklch(57.6% 0.071 259.3)
-
Step 700
700
#4A6186
oklch(49% 0.066 259.7)
-
Step 800
800
#3D506D
oklch(42.8% 0.054 258.7)
-
Step 900
900
#344258
oklch(37.6% 0.042 259.3)
-
Step 950
950
#1F2734
oklch(27.1% 0.027 260)
#607AA3 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) | #6B7CA5 | 0.016 |
| Deuteranopia (no green cones) | #6476A2 | 0.012 |
| Tritanopia (no blue cones) | #498388 | 0.063 |
| Achromatopsia (no color) | #797979 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #607AA3
#607AA3
oklch(57.6% 0.071 259.3)
- #8F7447
#8F7447
oklch(57.4% 0.071 79.4)
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 #607AA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.023
- Off Blue #5684AE ΔE 0.029
- Cerulean #457B9D ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.033
- Dull Blue #49759C ΔE 0.034
- Grey Blue #647D8E ΔE 0.037
- Steel Blue #4682B4 ΔE 0.037
- Cool Blue #4984B8 ΔE 0.041
Use #607AA3 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.